Question

What is the frequency of `f(theta)= sin 6 t - cos 8 t`?

Answer 1

`180^@ or pi`

Explanation:

Frequency of sin t and cos t --> `2pi` or `360^@`
Frequency of `sin 6t = (2pi)/6 = pi/3` or `60^@`
Frequency of `cos 8t = (2pi)/8 = pi/4` or `45^@`
Frequency of f(t) --> least multiple of 60 and 45 --> `180^@` or #pi